1 files changed, 35 insertions, 4 deletions

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 3aa2cd1f8d08..b1e3c2fbfe11 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -36,6 +36,7 @@ struct wusb_dev;
  *  - configs have one (often) or more interfaces;
  *  - interfaces have one (usually) or more settings;
  *  - each interface setting has zero or (usually) more endpoints.
+ *  - a SuperSpeed endpoint has a companion descriptor
  *
  * And there might be other descriptors mixed in with those.
  *
@@ -44,6 +45,19 @@ struct wusb_dev;
 
 struct ep_device;
 
+/* For SS devices */
+/**
+ * struct usb_host_ss_ep_comp - Valid for SuperSpeed devices only
+ * @desc: endpoint companion descriptor, wMaxPacketSize in native byteorder
+ * @extra: descriptors following this endpoint companion descriptor
+ * @extralen: how many bytes of "extra" are valid
+ */
+struct usb_host_ss_ep_comp {
+        struct usb_ss_ep_comp_descriptor        desc;
+        unsigned char                           *extra;   /* Extra descriptors */
+        int                                     extralen;
+};
+
 /**
  * struct usb_host_endpoint - host-side endpoint descriptor and queue
  * @desc: descriptor for this endpoint, wMaxPacketSize in native byteorder
@@ -51,6 +65,7 @@ struct ep_device;
  * @hcpriv: for use by HCD; typically holds hardware dma queue head (QH)
  *      with one or more transfer descriptors (TDs) per urb
  * @ep_dev: ep_device for sysfs info
+ * @ss_ep_comp: companion descriptor information for this endpoint
  * @extra: descriptors following this endpoint in the configuration
  * @extralen: how many bytes of "extra" are valid
  * @enabled: URBs may be submitted to this endpoint
@@ -63,6 +78,7 @@ struct usb_host_endpoint {
         struct list_head                urb_list;
         void                            *hcpriv;
         struct ep_device                *ep_dev;        /* For sysfs info */
+        struct usb_host_ss_ep_comp      *ss_ep_comp;    /* For SS devices */
 
         unsigned char *extra;   /* Extra descriptors */
         int extralen;
@@ -336,7 +352,6 @@ struct usb_bus {
 #ifdef CONFIG_USB_DEVICEFS
         struct dentry *usbfs_dentry;    /* usbfs dentry entry for the bus */
 #endif
-        struct device *dev;             /* device for this bus */
 
 #if defined(CONFIG_USB_MON) || defined(CONFIG_USB_MON_MODULE)
         struct mon_bus *mon_bus;        /* non-null when associated */
@@ -363,6 +378,7 @@ struct usb_tt;
  * struct usb_device - kernel's representation of a USB device
  * @devnum: device number; address on a USB bus
  * @devpath: device ID string for use in messages (e.g., /port/...)
+ * @route: tree topology hex string for use with xHCI
  * @state: device state: configured, not attached, etc.
  * @speed: device speed: high/full/low (or error)
  * @tt: Transaction Translator info; used with low/full speed dev, highspeed hub
@@ -420,6 +436,7 @@ struct usb_tt;
  * @skip_sys_resume: skip the next system resume
  * @wusb_dev: if this is a Wireless USB device, link to the WUSB
  *      specific data for the device.
+ * @slot_id: Slot ID assigned by xHCI
  *
  * Notes:
  * Usbcore drivers should not set usbdev->state directly.  Instead use
@@ -428,6 +445,7 @@ struct usb_tt;
 struct usb_device {
         int             devnum;
         char            devpath [16];
+        u32             route;
         enum usb_device_state   state;
         enum usb_device_speed   speed;
 
@@ -503,6 +521,7 @@ struct usb_device {
         unsigned skip_sys_resume:1;
 #endif
         struct wusb_dev *wusb_dev;
+        int slot_id;
 };
 #define to_usb_device(d) container_of(d, struct usb_device, dev)
 
@@ -903,6 +922,8 @@ extern struct bus_type usb_bus_type;
 /**
  * struct usb_class_driver - identifies a USB driver that wants to use the USB major number
  * @name: the usb class device name for this driver.  Will show up in sysfs.
+ * @nodename: Callback to provide a naming hint for a possible
+ *      device node to create.
  * @fops: pointer to the struct file_operations of this driver.
  * @minor_base: the start of the minor range for this driver.
  *
@@ -912,6 +933,7 @@ extern struct bus_type usb_bus_type;
  */
 struct usb_class_driver {
         char *name;
+        char *(*nodename)(struct device *dev);
         const struct file_operations *fops;
         int minor_base;
 };
@@ -1024,6 +1046,8 @@ typedef void (*usb_complete_t)(struct urb *);
  *      the device driver is saying that it provided this DMA address,
  *      which the host controller driver should use in preference to the
  *      transfer_buffer.
+ * @sg: scatter gather buffer list
+ * @num_sgs: number of entries in the sg list
  * @transfer_buffer_length: How big is transfer_buffer.  The transfer may
  *      be broken up into chunks according to the current maximum packet
  *      size for the endpoint, which is a function of the configuration
@@ -1041,7 +1065,9 @@ typedef void (*usb_complete_t)(struct urb *);
  * @setup_dma: For control transfers with URB_NO_SETUP_DMA_MAP set, the
  *      device driver has provided this DMA address for the setup packet.
  *      The host controller driver should use this in preference to
- *      setup_packet.
+ *      setup_packet, but the HCD may chose to ignore the address if it must
+ *      copy the setup packet into internal structures.  Therefore, setup_packet
+ *      must always point to a valid buffer.
  * @start_frame: Returns the initial frame for isochronous transfers.
  * @number_of_packets: Lists the number of ISO transfer buffers.
  * @interval: Specifies the polling interval for interrupt or isochronous
@@ -1177,6 +1203,8 @@ struct urb {
         unsigned int transfer_flags;    /* (in) URB_SHORT_NOT_OK | ...*/
         void *transfer_buffer;          /* (in) associated data buffer */
         dma_addr_t transfer_dma;        /* (in) dma addr for transfer_buffer */
+        struct usb_sg_request *sg;      /* (in) scatter gather buffer list */
+        int num_sgs;                    /* (in) number of entries in the sg list */
         u32 transfer_buffer_length;     /* (in) data buffer length */
         u32 actual_length;              /* (return) actual transfer length */
         unsigned char *setup_packet;    /* (in) setup packet (control only) */
@@ -1422,8 +1450,8 @@ struct usb_sg_request {
         int                     status;
         size_t                  bytes;
 
-        /*
-         * members below are private: to usbcore,
+        /* private:
+         * members below are private to usbcore,
          * and are not provided for driver access!
          */
         spinlock_t              lock;
@@ -1558,6 +1586,9 @@ extern void usb_unregister_notify(struct notifier_block *nb);
 #define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \
         format "\n" , ## arg)
 
+/* debugfs stuff */
+extern struct dentry *usb_debug_root;
+
 #endif  /* __KERNEL__ */
 
 #endif